Find the slope of a line that goes through (5, -1) and (-1, 2).?

Question

I know that it is 2 but what about the equation of the line?

Which is an equation of that line?

y = (-1/2)x + 3/2

y = 2x + 3/2

y = (-1/2)x + 3

Answer 1

the first or third one

the last number doesnt matter

only the slope does

and the slope is -1/2

Answer 2

the 1st one is correct.y=(-1/2)x+3/2

dont know what your trying to ask. it is not 2. the slope of the line is    (-1/2) not 2.  

Answer 3

(5,-1) and (-1,2)

-1-2/5-(-1)

-3/6=-1/2

y=-1/2x+b

-1=-1/2(5)+b

-1=-5/2+b

3/2=b

the equation is:

y=-1/2x+3/2

Answer 4

If it is a straight line......the slope of the line is the factor before the x in the equation. In this case, -1/2.

If the line has any other shape, such as a parabola, the answer is more complicated. Then you would have a changing slope along the line, and the slope at any point along that line is determined with Calculus.